501 lines
17 KiB
C++
501 lines
17 KiB
C++
/*************************************************************************/
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/* voxel_gi.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#include "voxel_gi.h"
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#include "mesh_instance_3d.h"
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#include "multimesh_instance_3d.h"
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#include "voxelizer.h"
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void VoxelGIData::_set_data(const Dictionary &p_data) {
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ERR_FAIL_COND(!p_data.has("bounds"));
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ERR_FAIL_COND(!p_data.has("octree_size"));
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ERR_FAIL_COND(!p_data.has("octree_cells"));
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ERR_FAIL_COND(!p_data.has("octree_data"));
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ERR_FAIL_COND(!p_data.has("octree_df") && !p_data.has("octree_df_png"));
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ERR_FAIL_COND(!p_data.has("level_counts"));
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ERR_FAIL_COND(!p_data.has("to_cell_xform"));
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AABB bounds = p_data["bounds"];
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Vector3 octree_size = p_data["octree_size"];
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Vector<uint8_t> octree_cells = p_data["octree_cells"];
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Vector<uint8_t> octree_data = p_data["octree_data"];
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Vector<uint8_t> octree_df;
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if (p_data.has("octree_df")) {
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octree_df = p_data["octree_df"];
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} else if (p_data.has("octree_df_png")) {
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Vector<uint8_t> octree_df_png = p_data["octree_df_png"];
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Ref<Image> img;
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img.instantiate();
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Error err = img->load_png_from_buffer(octree_df_png);
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ERR_FAIL_COND(err != OK);
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ERR_FAIL_COND(img->get_format() != Image::FORMAT_L8);
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octree_df = img->get_data();
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}
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Vector<int> octree_levels = p_data["level_counts"];
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Transform3D to_cell_xform = p_data["to_cell_xform"];
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allocate(to_cell_xform, bounds, octree_size, octree_cells, octree_data, octree_df, octree_levels);
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}
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Dictionary VoxelGIData::_get_data() const {
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Dictionary d;
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d["bounds"] = get_bounds();
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Vector3i otsize = get_octree_size();
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d["octree_size"] = Vector3(otsize);
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d["octree_cells"] = get_octree_cells();
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d["octree_data"] = get_data_cells();
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if (otsize != Vector3i()) {
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Ref<Image> img;
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img.instantiate();
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img->create(otsize.x * otsize.y, otsize.z, false, Image::FORMAT_L8, get_distance_field());
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Vector<uint8_t> df_png = img->save_png_to_buffer();
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ERR_FAIL_COND_V(df_png.size() == 0, Dictionary());
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d["octree_df_png"] = df_png;
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} else {
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d["octree_df"] = Vector<uint8_t>();
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}
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d["level_counts"] = get_level_counts();
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d["to_cell_xform"] = get_to_cell_xform();
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return d;
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}
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void VoxelGIData::allocate(const Transform3D &p_to_cell_xform, const AABB &p_aabb, const Vector3 &p_octree_size, const Vector<uint8_t> &p_octree_cells, const Vector<uint8_t> &p_data_cells, const Vector<uint8_t> &p_distance_field, const Vector<int> &p_level_counts) {
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RS::get_singleton()->voxel_gi_allocate_data(probe, p_to_cell_xform, p_aabb, p_octree_size, p_octree_cells, p_data_cells, p_distance_field, p_level_counts);
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bounds = p_aabb;
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to_cell_xform = p_to_cell_xform;
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octree_size = p_octree_size;
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}
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AABB VoxelGIData::get_bounds() const {
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return bounds;
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}
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Vector3 VoxelGIData::get_octree_size() const {
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return octree_size;
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}
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Vector<uint8_t> VoxelGIData::get_octree_cells() const {
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return RS::get_singleton()->voxel_gi_get_octree_cells(probe);
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}
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Vector<uint8_t> VoxelGIData::get_data_cells() const {
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return RS::get_singleton()->voxel_gi_get_data_cells(probe);
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}
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Vector<uint8_t> VoxelGIData::get_distance_field() const {
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return RS::get_singleton()->voxel_gi_get_distance_field(probe);
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}
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Vector<int> VoxelGIData::get_level_counts() const {
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return RS::get_singleton()->voxel_gi_get_level_counts(probe);
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}
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Transform3D VoxelGIData::get_to_cell_xform() const {
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return to_cell_xform;
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}
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void VoxelGIData::set_dynamic_range(float p_range) {
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RS::get_singleton()->voxel_gi_set_dynamic_range(probe, p_range);
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dynamic_range = p_range;
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}
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float VoxelGIData::get_dynamic_range() const {
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return dynamic_range;
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}
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void VoxelGIData::set_propagation(float p_propagation) {
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RS::get_singleton()->voxel_gi_set_propagation(probe, p_propagation);
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propagation = p_propagation;
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}
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float VoxelGIData::get_propagation() const {
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return propagation;
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}
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void VoxelGIData::set_energy(float p_energy) {
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RS::get_singleton()->voxel_gi_set_energy(probe, p_energy);
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energy = p_energy;
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}
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float VoxelGIData::get_energy() const {
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return energy;
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}
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void VoxelGIData::set_bias(float p_bias) {
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RS::get_singleton()->voxel_gi_set_bias(probe, p_bias);
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bias = p_bias;
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}
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float VoxelGIData::get_bias() const {
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return bias;
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}
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void VoxelGIData::set_normal_bias(float p_normal_bias) {
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RS::get_singleton()->voxel_gi_set_normal_bias(probe, p_normal_bias);
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normal_bias = p_normal_bias;
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}
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float VoxelGIData::get_normal_bias() const {
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return normal_bias;
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}
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void VoxelGIData::set_interior(bool p_enable) {
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RS::get_singleton()->voxel_gi_set_interior(probe, p_enable);
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interior = p_enable;
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}
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bool VoxelGIData::is_interior() const {
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return interior;
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}
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void VoxelGIData::set_use_two_bounces(bool p_enable) {
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RS::get_singleton()->voxel_gi_set_use_two_bounces(probe, p_enable);
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use_two_bounces = p_enable;
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}
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bool VoxelGIData::is_using_two_bounces() const {
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return use_two_bounces;
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}
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RID VoxelGIData::get_rid() const {
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return probe;
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}
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void VoxelGIData::_bind_methods() {
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ClassDB::bind_method(D_METHOD("allocate", "to_cell_xform", "aabb", "octree_size", "octree_cells", "data_cells", "distance_field", "level_counts"), &VoxelGIData::allocate);
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ClassDB::bind_method(D_METHOD("get_bounds"), &VoxelGIData::get_bounds);
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ClassDB::bind_method(D_METHOD("get_octree_size"), &VoxelGIData::get_octree_size);
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ClassDB::bind_method(D_METHOD("get_to_cell_xform"), &VoxelGIData::get_to_cell_xform);
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ClassDB::bind_method(D_METHOD("get_octree_cells"), &VoxelGIData::get_octree_cells);
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ClassDB::bind_method(D_METHOD("get_data_cells"), &VoxelGIData::get_data_cells);
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ClassDB::bind_method(D_METHOD("get_level_counts"), &VoxelGIData::get_level_counts);
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ClassDB::bind_method(D_METHOD("set_dynamic_range", "dynamic_range"), &VoxelGIData::set_dynamic_range);
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ClassDB::bind_method(D_METHOD("get_dynamic_range"), &VoxelGIData::get_dynamic_range);
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ClassDB::bind_method(D_METHOD("set_energy", "energy"), &VoxelGIData::set_energy);
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ClassDB::bind_method(D_METHOD("get_energy"), &VoxelGIData::get_energy);
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ClassDB::bind_method(D_METHOD("set_bias", "bias"), &VoxelGIData::set_bias);
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ClassDB::bind_method(D_METHOD("get_bias"), &VoxelGIData::get_bias);
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ClassDB::bind_method(D_METHOD("set_normal_bias", "bias"), &VoxelGIData::set_normal_bias);
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ClassDB::bind_method(D_METHOD("get_normal_bias"), &VoxelGIData::get_normal_bias);
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ClassDB::bind_method(D_METHOD("set_propagation", "propagation"), &VoxelGIData::set_propagation);
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ClassDB::bind_method(D_METHOD("get_propagation"), &VoxelGIData::get_propagation);
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ClassDB::bind_method(D_METHOD("set_interior", "interior"), &VoxelGIData::set_interior);
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ClassDB::bind_method(D_METHOD("is_interior"), &VoxelGIData::is_interior);
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ClassDB::bind_method(D_METHOD("set_use_two_bounces", "enable"), &VoxelGIData::set_use_two_bounces);
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ClassDB::bind_method(D_METHOD("is_using_two_bounces"), &VoxelGIData::is_using_two_bounces);
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ClassDB::bind_method(D_METHOD("_set_data", "data"), &VoxelGIData::_set_data);
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ClassDB::bind_method(D_METHOD("_get_data"), &VoxelGIData::_get_data);
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ADD_PROPERTY(PropertyInfo(Variant::DICTIONARY, "_data", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR | PROPERTY_USAGE_INTERNAL), "_set_data", "_get_data");
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ADD_PROPERTY(PropertyInfo(Variant::INT, "dynamic_range", PROPERTY_HINT_RANGE, "0,8,0.01"), "set_dynamic_range", "get_dynamic_range");
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ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "energy", PROPERTY_HINT_RANGE, "0,64,0.01"), "set_energy", "get_energy");
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ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "bias", PROPERTY_HINT_RANGE, "0,8,0.01"), "set_bias", "get_bias");
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ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "normal_bias", PROPERTY_HINT_RANGE, "0,8,0.01"), "set_normal_bias", "get_normal_bias");
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ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "propagation", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_propagation", "get_propagation");
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "use_two_bounces"), "set_use_two_bounces", "is_using_two_bounces");
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "interior"), "set_interior", "is_interior");
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}
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VoxelGIData::VoxelGIData() {
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probe = RS::get_singleton()->voxel_gi_create();
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}
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VoxelGIData::~VoxelGIData() {
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RS::get_singleton()->free(probe);
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}
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//////////////////////
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//////////////////////
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void VoxelGI::set_probe_data(const Ref<VoxelGIData> &p_data) {
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if (p_data.is_valid()) {
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RS::get_singleton()->instance_set_base(get_instance(), p_data->get_rid());
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} else {
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RS::get_singleton()->instance_set_base(get_instance(), RID());
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}
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probe_data = p_data;
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}
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Ref<VoxelGIData> VoxelGI::get_probe_data() const {
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return probe_data;
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}
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void VoxelGI::set_subdiv(Subdiv p_subdiv) {
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ERR_FAIL_INDEX(p_subdiv, SUBDIV_MAX);
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subdiv = p_subdiv;
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update_gizmos();
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}
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VoxelGI::Subdiv VoxelGI::get_subdiv() const {
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return subdiv;
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}
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void VoxelGI::set_extents(const Vector3 &p_extents) {
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extents = p_extents;
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update_gizmos();
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}
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Vector3 VoxelGI::get_extents() const {
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return extents;
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}
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void VoxelGI::_find_meshes(Node *p_at_node, List<PlotMesh> &plot_meshes) {
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MeshInstance3D *mi = Object::cast_to<MeshInstance3D>(p_at_node);
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if (mi && mi->get_gi_mode() == GeometryInstance3D::GI_MODE_BAKED && mi->is_visible_in_tree()) {
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Ref<Mesh> mesh = mi->get_mesh();
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if (mesh.is_valid()) {
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AABB aabb = mesh->get_aabb();
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Transform3D xf = get_global_transform().affine_inverse() * mi->get_global_transform();
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if (AABB(-extents, extents * 2).intersects(xf.xform(aabb))) {
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PlotMesh pm;
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pm.local_xform = xf;
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pm.mesh = mesh;
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for (int i = 0; i < mesh->get_surface_count(); i++) {
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pm.instance_materials.push_back(mi->get_surface_override_material(i));
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}
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pm.override_material = mi->get_material_override();
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plot_meshes.push_back(pm);
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}
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}
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}
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Node3D *s = Object::cast_to<Node3D>(p_at_node);
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if (s) {
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if (s->is_visible_in_tree()) {
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Array meshes = p_at_node->call("get_meshes");
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for (int i = 0; i < meshes.size(); i += 2) {
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Transform3D mxf = meshes[i];
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Ref<Mesh> mesh = meshes[i + 1];
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if (!mesh.is_valid()) {
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continue;
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}
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AABB aabb = mesh->get_aabb();
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Transform3D xf = get_global_transform().affine_inverse() * (s->get_global_transform() * mxf);
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if (AABB(-extents, extents * 2).intersects(xf.xform(aabb))) {
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PlotMesh pm;
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pm.local_xform = xf;
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pm.mesh = mesh;
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plot_meshes.push_back(pm);
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}
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}
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}
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}
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for (int i = 0; i < p_at_node->get_child_count(); i++) {
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Node *child = p_at_node->get_child(i);
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_find_meshes(child, plot_meshes);
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}
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}
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VoxelGI::BakeBeginFunc VoxelGI::bake_begin_function = nullptr;
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VoxelGI::BakeStepFunc VoxelGI::bake_step_function = nullptr;
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VoxelGI::BakeEndFunc VoxelGI::bake_end_function = nullptr;
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Vector3i VoxelGI::get_estimated_cell_size() const {
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static const int subdiv_value[SUBDIV_MAX] = { 6, 7, 8, 9 };
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int cell_subdiv = subdiv_value[subdiv];
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int axis_cell_size[3];
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AABB bounds = AABB(-extents, extents * 2.0);
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int longest_axis = bounds.get_longest_axis_index();
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axis_cell_size[longest_axis] = 1 << cell_subdiv;
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for (int i = 0; i < 3; i++) {
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if (i == longest_axis) {
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continue;
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}
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axis_cell_size[i] = axis_cell_size[longest_axis];
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float axis_size = bounds.size[longest_axis];
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//shrink until fit subdiv
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while (axis_size / 2.0 >= bounds.size[i]) {
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axis_size /= 2.0;
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axis_cell_size[i] >>= 1;
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}
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}
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return Vector3i(axis_cell_size[0], axis_cell_size[1], axis_cell_size[2]);
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}
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void VoxelGI::bake(Node *p_from_node, bool p_create_visual_debug) {
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static const int subdiv_value[SUBDIV_MAX] = { 6, 7, 8, 9 };
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p_from_node = p_from_node ? p_from_node : get_parent();
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ERR_FAIL_NULL(p_from_node);
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Voxelizer baker;
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baker.begin_bake(subdiv_value[subdiv], AABB(-extents, extents * 2.0));
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List<PlotMesh> mesh_list;
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_find_meshes(p_from_node, mesh_list);
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if (bake_begin_function) {
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bake_begin_function(mesh_list.size() + 1);
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}
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int pmc = 0;
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for (PlotMesh &E : mesh_list) {
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if (bake_step_function) {
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bake_step_function(pmc, RTR("Plotting Meshes") + " " + itos(pmc) + "/" + itos(mesh_list.size()));
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}
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pmc++;
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baker.plot_mesh(E.local_xform, E.mesh, E.instance_materials, E.override_material);
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}
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if (bake_step_function) {
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bake_step_function(pmc++, RTR("Finishing Plot"));
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}
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baker.end_bake();
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//create the data for rendering server
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if (p_create_visual_debug) {
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MultiMeshInstance3D *mmi = memnew(MultiMeshInstance3D);
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mmi->set_multimesh(baker.create_debug_multimesh());
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add_child(mmi);
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#ifdef TOOLS_ENABLED
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if (is_inside_tree() && get_tree()->get_edited_scene_root() == this) {
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mmi->set_owner(this);
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} else {
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mmi->set_owner(get_owner());
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}
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#else
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mmi->set_owner(get_owner());
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#endif
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} else {
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Ref<VoxelGIData> probe_data = get_probe_data();
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if (probe_data.is_null()) {
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probe_data.instantiate();
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}
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if (bake_step_function) {
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bake_step_function(pmc++, RTR("Generating Distance Field"));
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}
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|
|
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Vector<uint8_t> df = baker.get_sdf_3d_image();
|
|
|
|
probe_data->allocate(baker.get_to_cell_space_xform(), AABB(-extents, extents * 2.0), baker.get_voxel_gi_octree_size(), baker.get_voxel_gi_octree_cells(), baker.get_voxel_gi_data_cells(), df, baker.get_voxel_gi_level_cell_count());
|
|
|
|
set_probe_data(probe_data);
|
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#ifdef TOOLS_ENABLED
|
|
probe_data->set_edited(true); //so it gets saved
|
|
#endif
|
|
}
|
|
|
|
if (bake_end_function) {
|
|
bake_end_function();
|
|
}
|
|
|
|
notify_property_list_changed(); //bake property may have changed
|
|
}
|
|
|
|
void VoxelGI::_debug_bake() {
|
|
bake(nullptr, true);
|
|
}
|
|
|
|
AABB VoxelGI::get_aabb() const {
|
|
return AABB(-extents, extents * 2);
|
|
}
|
|
|
|
Vector<Face3> VoxelGI::get_faces(uint32_t p_usage_flags) const {
|
|
return Vector<Face3>();
|
|
}
|
|
|
|
TypedArray<String> VoxelGI::get_configuration_warnings() const {
|
|
TypedArray<String> warnings = Node::get_configuration_warnings();
|
|
|
|
if (RenderingServer::get_singleton()->is_low_end()) {
|
|
warnings.push_back(TTR("VoxelGIs are not supported by the OpenGL video driver.\nUse a LightmapGI instead."));
|
|
} else if (probe_data.is_null()) {
|
|
warnings.push_back(TTR("No VoxelGI data set, so this node is disabled. Bake static objects to enable GI."));
|
|
}
|
|
return warnings;
|
|
}
|
|
|
|
void VoxelGI::_bind_methods() {
|
|
ClassDB::bind_method(D_METHOD("set_probe_data", "data"), &VoxelGI::set_probe_data);
|
|
ClassDB::bind_method(D_METHOD("get_probe_data"), &VoxelGI::get_probe_data);
|
|
|
|
ClassDB::bind_method(D_METHOD("set_subdiv", "subdiv"), &VoxelGI::set_subdiv);
|
|
ClassDB::bind_method(D_METHOD("get_subdiv"), &VoxelGI::get_subdiv);
|
|
|
|
ClassDB::bind_method(D_METHOD("set_extents", "extents"), &VoxelGI::set_extents);
|
|
ClassDB::bind_method(D_METHOD("get_extents"), &VoxelGI::get_extents);
|
|
|
|
ClassDB::bind_method(D_METHOD("bake", "from_node", "create_visual_debug"), &VoxelGI::bake, DEFVAL(Variant()), DEFVAL(false));
|
|
ClassDB::bind_method(D_METHOD("debug_bake"), &VoxelGI::_debug_bake);
|
|
ClassDB::set_method_flags(get_class_static(), _scs_create("debug_bake"), METHOD_FLAGS_DEFAULT | METHOD_FLAG_EDITOR);
|
|
|
|
ADD_PROPERTY(PropertyInfo(Variant::INT, "subdiv", PROPERTY_HINT_ENUM, "64,128,256,512"), "set_subdiv", "get_subdiv");
|
|
ADD_PROPERTY(PropertyInfo(Variant::VECTOR3, "extents"), "set_extents", "get_extents");
|
|
ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "data", PROPERTY_HINT_RESOURCE_TYPE, "VoxelGIData", PROPERTY_USAGE_DEFAULT | PROPERTY_USAGE_DO_NOT_SHARE_ON_DUPLICATE), "set_probe_data", "get_probe_data");
|
|
|
|
BIND_ENUM_CONSTANT(SUBDIV_64);
|
|
BIND_ENUM_CONSTANT(SUBDIV_128);
|
|
BIND_ENUM_CONSTANT(SUBDIV_256);
|
|
BIND_ENUM_CONSTANT(SUBDIV_512);
|
|
BIND_ENUM_CONSTANT(SUBDIV_MAX);
|
|
}
|
|
|
|
VoxelGI::VoxelGI() {
|
|
voxel_gi = RS::get_singleton()->voxel_gi_create();
|
|
set_disable_scale(true);
|
|
}
|
|
|
|
VoxelGI::~VoxelGI() {
|
|
RS::get_singleton()->free(voxel_gi);
|
|
}
|